A personal account of fighting as a foreign volunteer in Ukraine, from leaving a boring IT job to joining the International Legion and experiencing trench warfare firsthand.

A review of 'The Internationalists', which argues for the significance of the 1928 Kellogg-Briand Peace Pact in outlawing war and shaping modern international relations.

Scott Alexander explores how perfect predictions of war outcomes, through oracles or prediction markets, could potentially prevent wars, and extends this concept to conflicts between superintelligent AIs.

Scott Alexander uses historical data to refute the Reactionary claim that modern society increases war, showing instead that violence has decreased significantly in progressive eras.